Detections
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RHEL 8 : python38:3.8 (RHSA-2020:4641)
critical Nessus Plugin ID 142431
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Synopsis
The remote Red Hat host is missing one or more security updates.Description
The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2020:4641 advisory.- PyYAML: command execution through python/object/apply constructor in FullLoader (CVE-2019-20477)
- python: infinite loop in the tarfile module via crafted TAR archive (CVE-2019-20907)
- python: DoS via inefficiency in IPv{4,6}Interface classes (CVE-2020-14422)
- PyYAML: arbitrary command execution through python/object/new when FullLoader is used (CVE-2020-1747)
- python: wrong backtracking in urllib.request.AbstractBasicAuthHandler allows for a ReDoS (CVE-2020-8492)
Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.
Solution
Update the affected packages.See Also
https://access.redhat.com/security/cve/CVE-2019-20477
https://access.redhat.com/security/cve/CVE-2019-20907
https://access.redhat.com/security/cve/CVE-2020-1747
https://access.redhat.com/security/cve/CVE-2020-8492
https://access.redhat.com/security/cve/CVE-2020-14422
https://access.redhat.com/errata/RHSA-2020:4641
https://bugzilla.redhat.com/1806005
https://bugzilla.redhat.com/1807367
https://bugzilla.redhat.com/1809065
Plugin Details
Severity: Critical
ID: 142431
File Name: redhat-RHSA-2020-4641.nasl
Version: 1.11
Type: local
Agent: unix
Family: Red Hat Local Security Checks
Published: 11/4/2020
Updated: 2/9/2024
Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 6.7
CVSS v2
Risk Factor: Critical
Base Score: 10
Temporal Score: 7.8
Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C
CVSS Score Source: CVE-2020-1747
CVSS v3
Risk Factor: Critical
Base Score: 9.8
Temporal Score: 8.8
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C
Vulnerability Information
CPE: p-cpe:/a:redhat:enterprise_linux:python38-cffi, p-cpe:/a:redhat:enterprise_linux:python38-chardet, p-cpe:/a:redhat:enterprise_linux:python38-cryptography, p-cpe:/a:redhat:enterprise_linux:python38-debug, p-cpe:/a:redhat:enterprise_linux:python38-devel, p-cpe:/a:redhat:enterprise_linux:python38-idle, p-cpe:/a:redhat:enterprise_linux:python38-idna, p-cpe:/a:redhat:enterprise_linux:python38-jinja2, p-cpe:/a:redhat:enterprise_linux:python38-libs, p-cpe:/a:redhat:enterprise_linux:python38-lxml, p-cpe:/a:redhat:enterprise_linux:python38-markupsafe, p-cpe:/a:redhat:enterprise_linux:python38-mod_wsgi, p-cpe:/a:redhat:enterprise_linux:python38-numpy, p-cpe:/a:redhat:enterprise_linux:python38-numpy-doc, p-cpe:/a:redhat:enterprise_linux:python38-numpy-f2py, p-cpe:/a:redhat:enterprise_linux:python38-pip, p-cpe:/a:redhat:enterprise_linux:python38-pip-wheel, p-cpe:/a:redhat:enterprise_linux:python38-ply, p-cpe:/a:redhat:enterprise_linux:python38-psutil, p-cpe:/a:redhat:enterprise_linux:python38-psycopg2, p-cpe:/a:redhat:enterprise_linux:python38-psycopg2-doc, p-cpe:/a:redhat:enterprise_linux:python38-psycopg2-tests, p-cpe:/a:redhat:enterprise_linux:python38-pycparser, p-cpe:/a:redhat:enterprise_linux:python38-pysocks, p-cpe:/a:redhat:enterprise_linux:python38-pytz, p-cpe:/a:redhat:enterprise_linux:python38-pyyaml, p-cpe:/a:redhat:enterprise_linux:python38-requests, p-cpe:/a:redhat:enterprise_linux:python38-rpm-macros, p-cpe:/a:redhat:enterprise_linux:python38-scipy, p-cpe:/a:redhat:enterprise_linux:python38-setuptools, cpe:/o:redhat:enterprise_linux:8, cpe:/o:redhat:rhel_aus:8.4, cpe:/o:redhat:rhel_aus:8.6, cpe:/o:redhat:rhel_e4s:8.4, cpe:/o:redhat:rhel_e4s:8.6, cpe:/o:redhat:rhel_eus:8.4, cpe:/o:redhat:rhel_eus:8.6, cpe:/o:redhat:rhel_tus:8.4, cpe:/o:redhat:rhel_tus:8.6, p-cpe:/a:redhat:enterprise_linux:python38, p-cpe:/a:redhat:enterprise_linux:python38-cython, p-cpe:/a:redhat:enterprise_linux:python38-pymysql, p-cpe:/a:redhat:enterprise_linux:python38-asn1crypto, p-cpe:/a:redhat:enterprise_linux:python38-babel, p-cpe:/a:redhat:enterprise_linux:python38-setuptools-wheel, p-cpe:/a:redhat:enterprise_linux:python38-six, p-cpe:/a:redhat:enterprise_linux:python38-test, p-cpe:/a:redhat:enterprise_linux:python38-tkinter, p-cpe:/a:redhat:enterprise_linux:python38-urllib3, p-cpe:/a:redhat:enterprise_linux:python38-wheel, p-cpe:/a:redhat:enterprise_linux:python38-wheel-wheel
Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list, Host/cpu
Exploit Available: true
Exploit Ease: Exploits are available
Patch Publication Date: 11/4/2020
Vulnerability Publication Date: 1/30/2020
Reference Information
CVE: CVE-2019-20477, CVE-2019-20907, CVE-2020-14422, CVE-2020-1747, CVE-2020-8492